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CAS No. : | 1137576-38-5 | MDL No. : | MFCD18072689 |
Formula : | C4HCl2IN2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | YKSZLCOPANWXES-UHFFFAOYSA-N |
M.W : | 274.87 | Pubchem ID : | 56763824 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
83% | Synthesis of 4,6-dichloro-5-iodo-pyrimidine (8a): 4,6-Dichloropyrimidine 6 (149 mg, 1.0 mmol) in THF (2 mL) was added to a solution of TMPZnCl.LiCl (2) (1.3 M in THF, 0.85 mL, 1.1 mmol) at 25 C. and the reaction mixture was then stirred at this temperature for 45 min according to TP 2. I2 (381 mg, 1.5 mmol) dissolved in dry THF (2 mL) was then dropwise added and the resulting mixture was stirred for 0.5 h. The reaction mixture was quenched with a sat. aq. Na2S2O3 solution (10 mL) and with a sat. aq. NH4Cl solution (20 mL), extracted with diethyl ether (3×50 mL) and driedanhydrous Na2SO4. After filtration, the solvent was evaporated in vacuo. Purification by flash-chromatography (CH2Cl2/n-pentane, 1:4) furnished compound 8a (227 mg, 83%) as a colourless solid.m.p.: 134.9-136.5 C.1H NMR (300 MHz, CDCl3) delta: 8.65 (s, 1 H).13C NMR (75 MHz, CDCl3) delta: 166.6, 156.8, 98.9.MS (70 eV, El) m/z (%): 274 (100) [M+], 239 (27), 97 (12), 83 (12), 57 (21).IR (ATR) v (cm-1): 2923, 2855, 1900, 1499, 1386, 11341, 1296, 1214, 1080, 1014, 790, 763, 745.HRMS (El) for C4HCl2IN2 (273.8561): 273.8565. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
50% | With triethylamine; In 1,4-dioxane; at 80℃;Inert atmosphere; | To the solution of <strong>[1137576-38-5]4,6-dichloro-5-iodopyrimidine</strong> (5.50 g, 20.00 mmol) (prepared according to the ref of Organic Letters; English; 11; 8; 2009; 1837 - 1840; ) in dioxane (100 mL) was slowly added the solution of tert-butyl l-(4-aminophenyl)cyclobutylcarbamate (5.2 g, 20.00 mmol) in dioxane (20 mL) and Et3N(5 ml). The reaction mixture was stirred at 80C for overnight, lc-ms indicated <strong>[1137576-38-5]4,6-dichloro-5-iodopyrimidine</strong> was completed consumed. After removed the excess solvents under the reduced pressure to get a residue, which was dissolved in Ethyl acetate (250 mL) and washed water and brine. The combined organic layer was dried over Na2S04 and then filtered, the filtrate was concentrated to give the crude product, which was further purified by flash chromatography to afford tert-butyl l-(4-(6-chloro-5-iodopyrimidin-4- ylamino)phenyl)cyclobutylcarbamate. (5.00 g 50% yield).LC/MS: (ESI+): 501 [M+l], 523 [M+Na]. |
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